Ask your own question, for FREE!
Mathematics 11 Online
OpenStudy (anonymous):

Evaluate using the angle addition identity: cos (285)

OpenStudy (anonymous):

I did cos (240+45), and I got |dw:1334513286806:dw|. Is that correct?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!